Granted Patent
Utility
US 6,531,317 · App. 09/741,861
Cytological and histological fixature composition and methods of use
Inventors:
Raouf A. Guirguis, Mariamena El-Amin
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Dec 22, 2000
Inventors
Raouf A. Guirguis
Mariamena El-Amin
Assignee (at issue)
LaMina, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.